When I Eat A Lot Of Times It Appears The

When I eat a lot of times it appears the food is stuck in my throat and sometimes I blackout for a while. Mainly happens when I eat beef such as roast and also rice? I have to put my fingers down my throat and make myself vomit to get it out. Is this a concern or should I just avoid the foods that seem to do it. When it happens it lasts for an hour or so. Don't know how long I am unconscious, my wife just laughs at me and says if I would chew my food it wouldn't happen?